JavaScript Archives - Page 3 of 4

Awesome Resources for Learning Salesforce Lightning

October 20, 2017Brian ClineJavaScript, Programming, SalesforceLearning Salesforce, Salesforce Lightning

At Dreamforce 2014, Salesforce announced they were changing the Salesforce User Interface to make it simpler to use. The new User Interface is called Salesforce Lightning. In my blog post, What is Salesforce Lightning I cover a lot more about what it is and how development differs from using Apex and Visualforce.

If you don’t have any experience with JavaScript, it will make programming Salesforce Lightning a lot more difficult. I strong recommend having a look at my blog post Resources for Learning JavaScript before you dive into learning Salesforce Lightning because JavaScript is what’s used predominantly in the controller now.

In the last two years or so, there’s been a steady increase in the number of resources that have become available for learning lightning. I launched my first lightning component as part of an AppExchange product about a year ago and have been doing lots of lightning, react and node development since then. I believe that all Salesforce Developers will need to learn and master javascript to avoid becoming irrelevant and unemployable in the next couple of years. …

Using Promises in Salesforce Lightning

October 11, 2017Brian ClineJavaScript, Programming, SalesforceSalesforce, Salesforce Lightning, salesforce lightning promises

It’s no secret that Salesforce Lightning is changing the way we develop for Salesforce. At Dreamforce 2014, Salesforce introduced Salesforce Lightning and it is proving to change a lot of things we do on the platform and I’m sure it will make things a lot better for users in the long term. If you aren’t already familiar with Salesforce Lightning then you need to read my post called What is Salesforce Lightning.…

What is a Self Invoking Function

October 5, 2017Brian ClineJavaScript, Programminganonymous functions, javascript, self invoking function

In JavaScript, it’s common to hear lots of strange terminology without a lot of description around what it is or what it does. I want to try and demystify what a self invoking function is and why you should consider them and the times when maybe you shouldn’t consider them.…

Why JavaScript

October 3, 2017Brian Cline1 CommentCloud Computing, JavaScript, Programmingjavascript, javescript mobile apps, learning javascript, why javascript

In the earlier days of the web, there was a battle between two scripting languages VBScript and JavaScript. VBScript, thankfully, eventually died and JavaScript became the dominant language for making really easy to use and interactive websites.

In the years since, JavaScript has become more and more used. Backend code can be written in basically any language, even in JavaScript, but the client side will almost always require a developer with some JavaScript knowledge. Every industry has a lot of javascript and some are even rewriting core functionality to use more. Surprisingly, even large banks and credit card companies are beginning to use JavaScript or Node in big ways. PayPal has been rewriting very large parts of their code base to make it more scalable and usable.…

How to Use Reduce on JavaScript Arrays

October 2, 2017Brian ClineJavaScript, Programmingjavascript, javascript array reduce, javascript functional programming

In functional programming, being able to reduce is one of the fundamental concepts. Reduce is used to iterate through the values in an array and condense all of the values into a single value. Usually the value is a sum of all of the elements, but it could be used to decrement, multiply or even…

Detecting Inactivity in JavaScript

September 26, 2017Brian ClineJavaScript, Programmingevents, javascript, javascript detecting mouse movement, javascript detecting user activity, javascript keyboard events, javascript mouse events

In a lot of web applications, it can be really useful to detect whether the user is still active or not. For example, when a user is no longer active it can make a lot of sense to automatically log the user out or remind them that they’re about to be logged out. …

How to merge Objects together in JavaScript

September 21, 2017Brian ClineJavaScript, Programmingjavascript, jQuery, merge objects

Merging objects together in JavaScript isn’t very difficult although there’s quite a few different ways that it can be done.

Note, I’m not covering deep cloning for the sake of simplicity although this can be easily done through most of these different methods.

…

How to get the URL Parameters in JavaScript

May 1, 2017Brian ClineJavaScript, Programmingjavascript, learning javascript

It’s no secret that JavaScript is now all around us, most html forms are using JavaScript for validation and of course there’s now JavaScript on the server. This post covers how to get the query string from the current page’s url.…

5 Resources for Learning JavaScript

March 24, 2017Brian ClineJavaScriptjavascript, learning javascript, resources for learning javascript, Salesforce Lightning

Traditionally when somebody said JavaScript, they were talking about a language that just did stuff on the client side like form validation or the occasional animation or UI enhancement. For years now, JavaScript has been all of the rage. Most new technology startups are now using JavaScript on the frontend, and on their backend services. …

Salesforce Developers Need to Learn JavaScript Today

March 13, 2017Brian ClineJavaScript, Programming, Salesforcelearning javascript, Salesforce, Salesforce Lightning

Over the years, it’s been possible for Salesforcce Developers to avoid needing to learn JavaScript because things could usually be done through a combination of apex and visualforce. If you don’t know JavaScript and you are a Salesforce Developer, you need to really consider finishing this post and learning JavaScript. …

Avoiding Globals in JavaScript

March 15, 2016Brian ClineJavaScript, Programmingjavascript

JavaScript uses functions as the primary way to define scope any variable defined inside of a function is in the local scope. A variable defined outside of a function is in the global scope.

Node.js & Environment Variables

February 9, 2016Brian ClineJavaScript, Programmingenvironment variables, NodeJS

Environment variables, also known as env, allow us to have applications we build behave differently based on the environment that they are running in. Well designed applications use environment variables and allow us to rapidly deploy to new environments.

Sorting Elements in an Array Alphabetically in JavaScript

May 19, 2015Brian ClineJavaScriptjavascript, javascript array sorting

There’s a lot of reasons why you may want to sort an array, often it is done to make things easier for the user of the application to understand the data. Arrays are normally sorted to be in ascending order (or alphabetical).

Recreating PHP’s time() function in JavaScript

May 12, 2015Brian ClineJavaScript, PHP, Programmingdates, javascript, PHP

PHP’s time() function returns the current unix timestamp. JavaScript doesn’t exactly have the same functionality, but it’s pretty close. Put a different and more understandable way, it returns the current time measured in seconds since the Unix Epoch (00:00:00 UTC on 1 January 1970).

JavaScript has a similar way of getting the time but it’s in milliseconds since the Unix Epoch.

JavaScript IsNumeric Function

January 13, 2015Brian ClineJavaScriptIsnumeric, javascript

In the past, there’s been so many times I needed to tell if an object was numeric. With the below function, it’s very easy to tell if an item is numeric. If your project is already using jQuery, you could always use jQuery.IsNumeric()

Dealing With Dates in JavaScript

July 5, 2011Brian ClineJavaScript, Programmingdatejs, javascript, learning javascript, momentjs

Dates and DateTimes are difficult to deal with in most languages. The Date object is a datatype that’s built in the JavaScript language. In JavaScript, the biggest problem is that the browsers aren’t overly consistent in the way they have implemented the Date object and its APIs. …

Disabling Caching on All AJAX in jQuery

June 10, 2011Brian ClineJavaScript, jQueryajax, javascript, jQuery

It’s no secret that many of us that use javascript regularly love jQuery because it handles a lot of the cross browser issues and makes our lives so much easier. The .ajax function makes use of caching by default, but we can override this by creating a function called .ajaxSetup and adding cache: false in…

How to Add CSS & JavaScript to a Magento CMS Page

May 8, 2011Brian ClineJavaScript, MagentoCMS, css, javascript, Magento, magento add javascript, magento themes

Magento is an insanely flexible system that has a lot of potential, but of course with this flexibility comes a lot of learning.

Adding a JavaScript file and a CSS file to a specific CMS page isn’t very difficult. We should always consider adding the JavaScript file or CSS file to the theme if we’re going to use it on more than one specific page.…

jQuery Mobile: Page Blank

April 27, 2011Brian Cline1 CommentJavaScript, jQuery, Programming

jQuery Mobile is an absolutely amazing javascript framework that can easily assist developing mobile friendly websites. jQuery Mobile is easily summarized by its authors to: “Delivering top-of-the-line JavaScript in a unified User Interface that works across the most-used smartphone web browsers and tablet form factors.” After adding jQuery Mobile to my first application, I discovered…

Component returned failure code: 0x805e000a

March 4, 2011Brian Cline1 CommentFirefox, JavaScript, jQueryAdblock, Firebug, firefox, global_message, javascript

Error: uncaught exception: [Exception… “Component returned failure code: 0x805e000a [nsIXMLHttpRequest.open]” nsresult: “0x805e000a ()” AdBlock interferes with the XmlHTTPRequest object and is known to sometimes break the way jQuery functions especially if the url triggers some sort of url filter. You have a few options to resolve the solution: suggest that users turn off AdBlock if…

Brian Cline

Solution Architect skilled in Salesforce, NetSuite and JavaScript Development

Category: JavaScript